Platyxiphydria tiphiiformis Takeuchi, 1938

Platyxiphydria tiphiiformis Takeuchi, 1938

Specimens examined. Yaita city: 1 ˁ, Happôgahara, 20. VI. 1976, T. Saito (NSMT, cited by Shinohara and Matsumoto, 2019). Ohtawara city: 1 ˂, Shimoishigami, 30. IV. 2004, E. Katayama (EK, cited by Katayama, 2005, and Shinohara and Matsumoto, 2019); 1 ˂, Shimoishigami, 21. V. 2005, E. Katayama (EK, cited by Katayama, 2005, and Shinohara and Matsumoto, 2019). Utsunomiya city: 1 ˂, Himuro-machi, 6–15. V. 2009, T. Nakamura (Malaise Trap) (TPM). Kanuma city: 1 ˁ, Kobugahara, 29. V. 1988, T. Saito (NSMT, cited by Shinohara and Matsumoto, 2019); 1 ˁ, Mt. Hagabasan, 25. V. 2011, M. Inaizumi (EK, cited by Shinohara and Matsumoto, 2019); 1 ˁ, Mino, 26. IV. 2015, T. Saito (NSMT, cited by Shinohara and Matsumoto, 2019). Sano city: 1 ˁ, Mt. Karasawa, 14. V. 1978, T. Saito (EK, cited by Nakamura, 2003, and Shinohara and Matsumoto, 2019). Tochigi city: 1 ˁ, Mt. Umairazu, Miya, Iwafune, 6. V. 2017, T. Kurihara. (TPM).

Remarks. This species is known to occur in Hokkaido, Honshu, Shikoku and Kyushu ( Shinohara and Matsumoto, 2019). From Tochigi prefecture, Nakamura (2003) first recorded Platyxiphydria flavipes and Katayama (2005) first recorded Platyxiphydria tiphiiformis . Shinohara and Matsumoto (2019) showed that these two Platyxiphydria taxa were different sexes of the same species and thus synonymous. Known host plants are Sambucus and Paulownia ( Shinohara and Matsumoto, 2019) . Unlike other Xiphydriidae from Tochigi prefecture, Platyxiphydria tiphiiformis has been found mainly on low mountains and plains.